Papers › TGANet: Text-guided attention for improved polyp segmentation

TGANet: Text-guided attention for improved polyp segmentation

9 May 2022arXiv:2205.04280archive 2025-07-28

Nikhil Kumar Tomar, Debesh Jha, Ulas Bagci, Sharib Ali

Colonoscopy is a gold standard procedure but is highly operator-dependent. Automated polyp segmentation, a precancerous precursor, can minimize missed rates and timely treatment of colon cancer at an early stage. Even though there are deep learning methods developed for this task, variability in polyp size can impact model training, thereby limiting it to the size attribute of the majority of samples in the training dataset that may provide sub-optimal results to differently sized polyps. In this work, we exploit size-related and polyp number-related features in the form of text attention during training. We introduce an auxiliary classification task to weight the text-based embedding that allows network to learn additional feature representations that can distinctly adapt to differently sized polyps and can adapt to cases with multiple polyps. Our experimental results demonstrate that these added text embeddings improve the overall performance of the model compared to state-of-the-art segmentation methods. We explore four different datasets and provide insights for size-specific improvements. Our proposed text-guided attention network (TGANet) can generalize well to variable-sized polyps in different datasets.

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Tasks

AttributeMedical Image SegmentationPolyp Segmentation

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Medical Image Segmentation BKAI-IGH NeoPolyp-Small TGANet Average Dice 0.9023 #4 of 9 Archive leaderboard report
Medical Image Segmentation BKAI-IGH NeoPolyp-Small TGANet mIoU 0.8409 #4 of 9 Archive leaderboard report
Medical Image Segmentation Kvasir-SEG TGA-Net mIoU 0.8330 #43 of 58 Archive leaderboard report
Medical Image Segmentation Kvasir-SEG TGA-Net mean Dice 0.8982 #43 of 58 Archive leaderboard report
Polyp Segmentation Kvasir-SEG TGA-Net mDice 0.8982 #3 of 8 Archive leaderboard report
Polyp Segmentation Kvasir-SEG TGA-Net mIoU 0.8330 #3 of 8 Archive leaderboard report

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